Final Prototype - Features

This section defines the functionality for each device:

Watch

• The time can be changed by winding either of the buttons, the user does not need to know which.
• Tracks the users movement and location.
• Monitors the users heart rate and body temperature, and can detect if the user is wearing the watch.
  
• An emergency signal is automatically transmitted if the monitored information becomes suspicious (e.g. the watch is operating, but there is no pulse or movement).
• A manual emergency signal can be activated by pushing and holding the two buttons for two seconds. The watch vibrates for three seconds and the red light is activated. During this time the user can cancel the alarm before it is activated (by pushing the two buttons). An audible alarm is sounded, and the emergency signal is transmitted.
• The emergency services can be contacted by pushing the two buttons once. As with the alarm, the watch warns the user with a vibration and a red light, allowing them to cancel before the call is made. The call is outputted using a speaker, and the user can speak directly into the watch.
• A family member (assigned to the watch using the input device) can also be contacted, by pressing one button and holding for two seconds.
• All functions are turned off by pressing any button.
  
• Two LED lights provide feedback to the user about the watches state, allowing them to ensure the watch is functioning, or that they have not pressed a button by mistake. For example, no light means that the watch is currently not operational (e.g. if the user is no wearing it). A green light means that the watch is operational (the user is wearing it). A red light means that one of the emergency functions is currently running.
  

Input Device

• User can input general health information, which is stored in logs for each category.
• Example categories include weight, blood pressure, heart rate, diet, and exercise log.
• The user can make their own categories if they wish.
• All information stored in the device is viewable and editable.
• Information can be sent to a number of health professionals stored as contacts in the device (e.g. GP or dietician).
• Contacts can send messages directly to the device, allowing them to provide quick advice, book appointments, etc. Users can reply to these messages if they wish.
• Users are prevented from modifying or sending data that has already been sent.
• Ability to change some options (e.g. colours, units used for values, contact details, etc).
• Navigation is performed using the touch screen, with "soft" buttons displayed on pages.
• Ability to hand-write data into the device. This assumes text recognition is more advanced in the future.
• Ability to input commands using the microphone. This assumes speech recognition is more advanced in the future. We found that this function was better suited to "expert" users, as it provides quick shortcuts for tasks.
• Context-sensitive instructions are displayed on the left screen of the device.
• Text can be verbalised by clicking it (or hovering in the case of buttons). The device also provides some context about the text (e.g. it will tell the user that the text belongs to a button, and the button may belong to a certain piece of information).
• Text can be made larger and smaller by placing two fingers on the touch screen and pulling them apart (or bringing them together).
• The features for the input device have remained relatively unchanged from the initial prototype, with the exception of security-related features and some minor changes.
  

Security System

The optional security features have been removed from the prototype, to reduce the complexity for the user, and to allow us to focus on the health monitoring aspect.